BBCH-scale (sunflower)

It is a plant species specific version of the BBCH-scale.

Back of anthocarp still green Seeds about 50% dry matter Back of anthocarp yellow, bracts brown edged.

Seeds about 60% dry matter Bracts marbled brown.

Seeds about 75–80% dry matter Back of anthocarp brown.

Seeds about 85% dry matter 1 Stem elongation may occur earlier than stage 19; in this case continue with the principal stage 3